(a) Who Must File. Any nongovernmental corporate party to a proceeding in a court of appeals must file a statement identifying all its parent corporations and listing any publicly held company that owns 10% or more of the party’s stock.

(b) Time for Filing; Supplemental Filing. A party must file the Rule 26.1(a) statement with the principal brief or upon filing a motion, response, petition, or answer in the court of appeals, whichever occurs first, unless a local rule requires earlier filing. Even if the statement has already been filed, the party’s principal brief must include the statement before the table of contents. A party must supplement its statement whenever the information that must be disclosed under Rule 26.1(a) changes.

(c) Number of Copies. If the Rule 26.1(a) statement is filed before the principal brief, or if a supplemental statement is filed, the party must file an original and 3 copies unless the court requires a different number by local rule or by order in a particular case. For purposes of this Rule 26(c), a paper that is served electronically is not treated as delivered on the date of service stated in the proof of service.